I can compact you can compact she can compact we can compact you can compact they can compact
V-ing form
I can be compacting you can be compacting she can be compacting we can be compacting you can be compacting they can be compacting
Perfect
I can have compacted you can have compacted she can have compacted we can have compacted you can have compacted they can have compacted
V-ing perfect
I can have been compacting you can have been compacting she can have been compacting we can have been compacting you can have been compacting they can have been compacting
Negation
Simple form
I can't compact you can't compact she can't compact we can't compact you can't compact they can't compact
V-ing form
I can't be compacting you can't be compacting she can't be compacting we can't be compacting you can't be compacting they can't be compacting
Perfect
I can't have compacted you can't have compacted she can't have compacted we can't have compacted you can't have compacted they can't have compacted
V-ing perfect
I can't have been compacting you can't have been compacting she can't have been compacting we can't have been compacting you can't have been compacting they can't have been compacting
Interrogative form
Simple form
can I compact? can you compact? can she compact? can we compact? can you compact? can they compact?
V-ing form
can I be compacting? can you be compacting? can she be compacting? can we be compacting? can you be compacting? can they be compacting?
Perfect
can I have compacted? can you have compacted? can she have compacted? can we have compacted? can you have compacted? can they have compacted?
V-ing perfect
can I have been compacting? can you have been compacting? can she have been compacting? can we have been compacting? can you have been compacting? can they have been compacting?
Interro-negative form
Simple form
can't I compact? can't you compact? can't she compact? can't we compact? can't you compact? can't they compact?
V-ing form
can't I be compacting? can't you be compacting? can't she be compacting? can't we be compacting? can't you be compacting? can't they be compacting?
Perfect
can't I have compacted? can't you have compacted? can't she have compacted? can't we have compacted? can't you have compacted? can't they have compacted?
V-ing perfect
can't I have been compacting? can't you have been compacting? can't she have been compacting? can't we have been compacting? can't you have been compacting? can't they have been compacting?